18506727

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 30270240

約数和(自身を除く): 11763513

約数列:

[1, 3, 9, 17, 29, 43, 51, 87, 97, 129, 153, 261, 291, 387, 493, 731, 873, 1247, 1479, 1649, 2193, 2813, 3741, 4171, 4437, 4947, 6579, 8439, 11223, 12513, 14841, 21199, 25317, 37539, 47821, 63597, 70907, 120959, 143463, 190791, 212721, 362877, 430389, 638163, 1088631, 2056303, 6168909, 18506727]

約数ペア:

[(1, 18506727), (3, 6168909), (9, 2056303), (17, 1088631), (29, 638163), (43, 430389), (51, 362877), (87, 212721), (97, 190791), (129, 143463), (153, 120959), (261, 70907), (291, 63597), (387, 47821), (493, 37539), (731, 25317), (873, 21199), (1247, 14841), (1479, 12513), (1649, 11223), (2193, 8439), (2813, 6579), (3741, 4947), (4171, 4437)]